I understand your main concern which is being worried on a surgical procedure and also probably having a scar on you after the procedure. First let me be direct and sincere with you, the only possible we to treat/cure inguinal hernia is a surgical procedure called herniorrahphy. Methods such as reduction could be applied but most surgeons will recommend surgical correction because of the potential future complication of the hernia which is usually strangulation or incarceration. My suggestion is you get a surgery ( closure of your skin should be done with care to minimize visible scarring). Take note that the surgery is not very invasive and often presents with little complications Try discussing with your doctor again.